Expansion joint for flue sections and the like



Aug. 16, 1932. w. J. MASSA EXPANSION JOINT FOR FLUE SECTIONS AND THE LIKE Filed oct. 29, 1929 s 1 E RAWJ. m msn m mw. m. VM N a j., 5. Wm Il by ul .W

Patented Aug. 16, 1932 .Unirse STATES PATENT carica i WILLIAM J. MASSA,V F NEW YORK, N.Y., ASSIGNOR TO BERGEN' POINT IRON'WORKS, 0F

BAYONNE, NEW JERSEY, A CORPORATION OF NEW JERSEY ExrANsIoN JOINT Eon ELITE sEcEIoNsAND THE LIKE Application ledctober 29, 1929. Serial No. 403,271.

This'invention relates to improvements in expansion joints for flue sectionsand the like irrespective of the cross section of theY j flue Vor -like conduit to which the invention is s applied.v Inthe past it has been customary to construct expansion joints with either curved or angular corrugations which per-v mit expansionof the flue by distortion of the Shape of the corrugations of the joint. This type of expansion joint has been found undesirable for the reason Vthat ultimately they joint fails or becomes ruptured, especially atV the corners when the joint is used in flues of j square or any like cross-section having corners. Y Y Y It is the principal object of my invention to providev avga's tight expansion joint applicable to flues irrespective of their cross sec'- tion, this joint to be constructed so as to allow the flue toexpand and contract without flexure ,orl rupture of anyl of the parts cornprising the expansion joint. Other objects of my invention will appear as my invention is described in connection with the accoml' 25 panying drawing. n g

In the drawingv Figure 1 is a foreshortened elevation sectional view of an expansion joint constructed according to the principlesof my invention and shown in cooperating relation with two adjoining ue sections. The view is taken on section passing longitudinally through the Figure 2 is a lforeshortened sectional or plan view of my invention asshown in Figure 1 with the section taken on line 2-2 of Figure 1.

Figure 3 is a'fragmentary elevation sectional view showing in sectionV one side of a modified construction of myv expansion joint.

Referring to the drawing it will be noted that the invention is applied between two adjoining flue sections l0 and 12 of square cross section. At the ends of the flue sections and around the periphery thereof continuous right angle members 14; and 16 are boltedV or riveted with one flange ofthe angles flush with the ends of the section andV theother flange extending out perpendicularly to the :A `flue. In order that the expansion jointmay besecured to the flue sections I provide'anglev members `18 and 20 on ythe expansion joint which are similar in size and cross sectionY to angles 14C and 16 and cooperate therewith 'as will `now be described. I These Vangles 18 and 2O are positioned with one ofV4 their. flanges, A., A lying parallel to the outward ly extendinganges ofthe angles 14 and 16.

rIhe other flanges B, B of the angles 18 and Y 2O project onward from the flue sections parallel to the axis thereof. kTo join these projecting flanges B, B of the angles 18V and 2.0and to keep the gases V*from escaping, while at the same time allowing for expan-r sion and contraction between. the flueu sections, I provide a sleeve 22 of substantially v the same dimensions in cross section as the flue sections. This sleeve may be bolted or riveted to the projecting flange B of the angle 18 and may be slidably connected with the projecting flange B. of the angle 20 by bolts 25 passing through slots 26 in the Sleeve 22.

In'this way the movement of thefs'ections One edge of this resilient member may be Securedlto the4 projecting Hange'B of the angle 18 bythe same bolts or'vrivets which secure the sleeve 22 to thisV flange. Thevother edge of this resilient member28pis provided with a piece of gasketmaterial 29 riveted toit all the wayaroundits edge, between the edge and the flange B against which it presses, to provide a seal between the edge and theflange' B. It will be noted, since this gasketed edge sol is not secured to the projecting fiange ofthe Y member 2O that there may be a relative movement between this gasketed edge and 'the'V flange'Bduring expansion and contraction of the flue section. In order `to make this sliding connectiontight, I provide boltsv 30 transverse Vto the fluev axisv and passing ido through the sleeve 22 between the ends of the projecting flanges B, B and through the center of the resilient member 28. Upon screwing Vthe nut 32 on to the bolt V30 the resilient member 28 may be caused to press with more or less force against the Hange B and the transverse bolts 30 may be put under tension and the amount or tension applied may be varied to suit the requirements .of the particular conditions of use." l

In Figure 3 I have shown'a'moditiedA form of my invention.Y InA this modilication an angle 14 similar to the angle 14 hereinbefore described, is secured to the. Hue section 10. rThis angle 14 has securedl to it by bolts orrivets an angle 18 similar to the angle 18 hereinbefore described. A sleeve member 22 similar to sleeve 22 maybe secured to the ang-le 18 in the same way that sleeve 22 is secured to the angle 18. vThis sleeve 22 is adapted to slide along inside of an adjoining Huesection 12', a gasket 86 being inserted between the sleeve 22and the Hue section 12 in order that a tight joint might be made and that the sleeve may still be able to slide within the Hue.

Bridging the gap between angle 18 and the end of the Hue section 12 is a bowed mem ber28 similar to the member 28 hereinbefore described. The edges of this bowed member in assembl-ed position (see Figure 3) and putY under stress, by means of bolts'BO passing transversely through apertures in the end portionof the Hue section 12 and through the center of thebowed member '28 as in the case of Figs. 1 and2. In orderthat theV head of the bolt 30" will not obstruct the .movement of the sleeve 22 and thesection'12" relative to eachother the head of the bolt is countersunk in the Hue section 12 as shown.

Resilient means are provided to secure the adjoining Hue sections 10,', 12 together and limit their movement apart. This means may consist of a plurality of rods 40 running parallel. to the Hue axis outside the expansion joint. These rods vslide through apertures in the angleV 18 and through apertures in the angle member 16 which is secured to theHue section 12 by bolts or rivets. To allowlimited movement -of the sections away from each other and Ato restrain that'movement the rods 40 are made longer than the distance between the angles 18, 16 and compression springs 41 are coiled` around the V`rods between nuts 42 on the ends of the rods and the angles 16, 18 respectively. Similar springs are coiled around the rod between the have provided a joint which doesv not employ any element which is subject to continued bending orHeXure.v Thus I have provided a jointwhich will not: fail dueto rupture or Acracking of any member andat the same time I'have provided' a joint which though gas tight, allows free movementto theV Hues for expansion and contraction. Y

While I' have shown my invention as ap-A liedto a square Hue it will be obvious'that the invention is equally applicable to Hues of other shapes and is not in any-waylimited in application to a square Hue. v

Many changes within the scope of my in,-V vention will occur to those skilled in the art therefore I do not limit myselfto the specific embodiments show n.4 Y

I claim: 1. An expansion joint for Hue sections and' the like comprising abowed member adapted to be located between the ends of Huesections to prevent the escape of gases, and means transverse vto the axis of' the Hueto,V applyand vary pressureon saidbowed mem-L ber, whereby to make a tight joint. f

2. An expansion joint for Hue sections and the like comprising a bowed member adapted to be located between the ends of Hue sections to prevent the escape of gases, andl means transverse to the axis` of the Hue to hold said bowed member in fixed relation to one of the Hue sections while allowing said member 'to have sliding relation to the other Hue section. v f

3. An expansion jointfor Hue sections and the like, comprising members adapted to be securedto adjoining Hue sections, a sleeve member rigidly connected at one end with one ofsaid Hrst mentioned members and slidably engaging at its other end with another of said Hrst mentioned members, a member bridging the gap between said Hrst mentioned members, and means positively holding sai d last mentioned memberA against saidv Hrst mentioned members. v 4. An expansion Yjoint for Hue sections and the like, comprising members adapted to cooperate with'adjoining Hue sections, a; member rigidly connectedat oneend with one of said Hrst mentioned members and slidabl-y Vconnected at th-e other end to another ofsaid 5. An expansion joint for iiue sections and the like, comprising members adapted to be secured to adjoining flue sections, a sleeve member rigidly connected at one end with one of said Jirst mentioned members and sldably connected at the other end toanother of said first mentioned members, and a member bridging the gap between said iirst mentioned members, said bridging member being rigidly secured to one of said lirst mentioned members and slidably engaging another ot said first mentioned members, and means transverse to the flue axis to apply and vary pressure on the resilient member.

6. An expansion joint for flue sections and the like, comprising members adapted to cooperate with adjoining flue sections, a member rigidly connected at one 'end with one of said iirst mentioned members and slidablv engaging at the other end with anotherv or' said first mentioned members, a member of said first mentioned members, a member.

bridging the gap between said first mentioned members and transverse bolts passing through said bridging member, to apply and vary pressure on said bridging member..

8. An expansion joint for liue sections and the like, comprising membersadapted to be secured to adjoining flue sections, a sleeve member rigidly connected at one end with one of said irst mentioned members and slidably connected at the other end to another of said first mentioned members, a resilient member bridging the gap between said first mentioned members, said resilient member being rigidly secured to one of said ifirst mentioned members and slidably engaging another of said lirst mentioned members, and means transverse to the iiue axis to apply and vary the tension in the resilient member, said means passing through said sleeve member and said resilient member.

9. The combination with a plurality of flue sections, of an expansion joint comprising a member secured to one of said sections, a

member associated with an adjoining section, resilient means bridging the gap betwen said members, and means transverse to the flue axis to apply and vary pressure on said resilient member. Y

lO. The combina-tion with a plurality of flue sections of an expansion joint comprising a member adapted to be secured to one -liie section, a second member rigidly secured to the first named member, a third member engaging with an adjoining section, said second member having sliding engagement with said third member, and a resilient member bridging the gap between said third member and said second member, and means transverse to the flue axis to apply and vary pressure on said resilient member.

l1. The combination with a plurality of liue sections, of an expansion joint therebetween comprising an angle member adapted to be secured to one section, means engaging with an adjoining section, a sleeve member secured to said angle member and engaging slidably with said means, together with a resilient member bridging the gap between said means and said angle. member, and means transverse to said sleeve member and passing through said resilient member to apply and varypressure on said resilient member.

ln testimony whereof l have signed myV name to this specification. WILLIAM J. 'MASSA ioo 

